Westminster Larger Catechism
Luke 2:34–38 (CSB) Then Simeon blessed them and told his mother Mary, “Indeed, this child is destined to cause the fall and rise of many in Israel and to be a sign that will be opposed— and a sword will pierce your own soul—that the thoughts of many hearts may be revealed.” There was also a prophetess, Anna, a daughter of Phanuel, of the tribe of Asher. She was well along in years, having lived with her husband seven years after her marriage, and was a widow for eighty-four years. She did not leave the temple, serving God night and day with fasting and prayers. At that very moment, she came up and began to thank God and to speak about him to all who were looking forward to the redemption of Jerusalem.
According to Simeon, what did Jesus come to do? Where can we point in the Gospels where Christ himself speaks of the same thing? Read John the Baptist's prophecy in John 3:25-30 and then consider all the prophets of the OT including Anna and John. What did all the prophets do?